It's too bad ultrasonic transducers this size (~16mm) are too large to make a linear phased array with high angle range and low grating lobes [1]. This means t

It's too bad ultrasonic transducers this size (~16mm) are too large to make a linear phased array with high angle range and low grating lobes [1]. This means that a different object or particle might be manipulated simultaneously with the target object. I've been looking into using a genetic search or just brute force random search to create a randomized transducer pattern that minimizes grating lobes though. You can purchase these transducers in bulk for super low prices though! So anyway to build a capable phased array with them would be awesome. [1] http://www.microwaves101.com/encyclopedias/grating-lobes http://www.microwaves101.com/encyclopedias/grating-lobes